Speaker



FIG. 1 is a perspective view of a speaker;

FIG. 2 is a front view of the speaker of FIG. 1;

FIG. 3 is a rear view of the speaker of FIG. 1;

FIG. 4 is a left-side view of the speaker of FIG. 1;

FIG. 5 is a right-side view of the speaker of FIG. 1;

FIG. 6 is a top plan view of the speaker of FIG. 1; and,

FIG. 7 is a bottom plan view of the speaker of FIG. 1. 

The ornamental design for the speaker, as shown and described. 